{"product_id":"oem-goodman-120-f-auxiliary-limit-switch-for-ams81155cna-b1370155","title":"OEM Goodman 120°F Auxiliary Limit Switch for AMS81155CNA — B1370155","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370155 Auxiliary Limit Switch\u003c\/strong\u003e is a genuine OEM safety control designed for the \u003cstrong\u003eAMS81155CNA\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This normally-closed thermal switch opens the control circuit when it senses an over-temperature condition of \u003cstrong\u003e120°F\u003c\/strong\u003e, shutting down the furnace to prevent heat-exchanger and cabinet damage. It is a critical, code-required safety device — a failed or bypassed limit switch is a fire and carbon-monoxide hazard.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Temperature:\u003c\/strong\u003e 120°F (auxiliary \/ rollout circuit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Normally-closed, automatic-reset thermal limit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e B1370155\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (fits Amana-branded units)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Fit:\u003c\/strong\u003e AMS81155CNA gas furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment Type:\u003c\/strong\u003e Furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is the \u003cstrong\u003efactory-original Goodman part\u003c\/strong\u003e, calibrated to the exact 120°F set point your furnace board expects. Generic aftermarket switches often carry loose temperature tolerances that cause nuisance shutdowns or, worse, delayed tripping. For a safety-critical control, OEM is strongly recommended over a universal substitute.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Two-wire spade connection with a single mounting screw. Always shut off power and gas before servicing. If you are unsure why the original tripped, have a licensed HVAC technician diagnose the root cause before replacing.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eNote: This is a genuine OEM Goodman replacement part. National HVAC Parts is not affiliated with or endorsed by Goodman Manufacturing.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057714545011,"sku":"GOODMAN-7170","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120-f-auxiliary-limit-switch-for-ams81155cna-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}